test(mcp): stabilize refresh budget synchronization

packages/mcp/src/__tests__/manager.test.ts

@@ -749,16 +749,33 @@ describe('McpClientManager E2E', { concurrency: false }, () => {
       );
     });
 
-    test('gives spaced list-changed notifications independent refresh budgets', async () => {
+    test('gives spaced list-changed notifications independent refresh budgets', {
+      timeout: 30_000,
+    }, async () => {
       const fixture = await createRemoteFixture('sse');
       let now = 0;
       const manager = createManager({ now: () => now });
       await manager.sync(remoteConfig(`${fixture.url}/sse`, 'auto'));
 
       for (let change = 1; change <= 4; change += 1) {
         now += 1_000;
+        const refreshCompleted = new Promise<void>((resolve) => {
+          const unsubscribe = manager.onChange((status) => {
+            if (
+              status.serverId !== 'remote' ||
+              status.state !== 'connected' ||
+              status.updatedAt !== now ||
+              status.error !== undefined
+            ) {
+              return;
+            }
+            unsubscribe();
+            resolve();
+          });
+        });
         await fixture.notifyToolListChanged();
-        await waitFor(() => countProtocolMethod(fixture, 'tools/list') === change + 1);
+        await refreshCompleted;
+        assert.equal(countProtocolMethod(fixture, 'tools/list'), change + 1);
       }
 
       assert.equal(manager.status('remote')?.error, undefined);